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Oxidation of secondary alcohol help needed Watch

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    Name:  yhb.png
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Size:  11.2 KB For this question, it later asks about how propan-2-ol will react in this 2 part experiment.

    So the first part shows complete oxidation and the second is the partial oxidation only.

    I don't understand why secondary alcohol will can be distilled (in the second part of the experiment) to also form a ketone. I thought the conditions to turn a secondary alcohol to a ketone must be to heat under reflux and use excess dichromate? How can it also be distilled to form a ketone?

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    (Original post by coconut64)
    Name:  yhb.png
Views: 34
Size:  11.2 KB For this question, it later asks about how propan-2-ol will react in this 2 part experiment.

    So the first part shows complete oxidation and the second is the partial oxidation only.

    I don't understand why secondary alcohol will can be distilled (in the second part of the experiment) to also form a ketone. I thought the conditions to turn a secondary alcohol to a ketone must be to heat under reflux and use excess dichromate? How can it also be distilled to form a ketone?

    Thanks
    You don't need particularly harsh conditions to oxidise a secondary alcohol to a ketone. So both procedures here will do the job.

    This is different from a primary alcohol like ethanol where a weak oxidising agent will turn it into an aldehyde and a strong oxidising agent will turn it into a carboxylic acid
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    (Original post by langlitz)
    You don't need particularly harsh conditions to oxidise a secondary alcohol to a ketone. So both procedures here will do the job.

    This is different from a primary alcohol like ethanol where a weak oxidising agent will turn it into an aldehyde and a strong oxidising agent will turn it into a carboxylic acid
    What about the reagent then? Does it need to be in excess for secondary alcohol to be oxidised?

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    (Original post by coconut64)
    What about the reagent then? Does it need to be in excess for secondary alcohol to be oxidised?

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    If you are distilling off the ketone then it shouldn't matter, you will still get the ketone (but it wouldn't go to completion of course)
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    (Original post by langlitz)
    If you are distilling off the ketone then it shouldn't matter, you will still get the ketone (but it wouldn't go to completion of course)
    I meant if I am to heat the secondary alcohol under reflux to produce the ketone (since this also works), will an excess amount of reagent needed in this case?
 
 
 
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